This project was commissioned by the National Institute of Environmental Analysis, Environmental Protection Administration. The project was in accordance with「Regulations Governing Motor Vehicle Air Pollutant and Noise Emission Testing Organizations」to supervise and guide quality management systems for the licensed laboratories. This project was designed to provide improving suggestions to laboratories by annual audit for their quality management system and processes, and to check the improved actions by supplemental audit to assure the objectives of project achieved. Meanwhile, this project was also expected to enhance testing technique and quality of laboratories by checking the traceability and integrality of measurement data to assure the justice of test result. The achievements of this project include: (1) Annual audit and supplemental audit for quality system guidance of 17 laboratories were completed. (2)88 supervisions for correlation testing were completed, including 4 test items of gasoline vehicles exhausting testing, diesel vehicles exhausting testing, motorcycle exhausting testing and noise testing. All results meet the requirement. (3)MTD (mean texture depth) of 7 noise testing tracks were inspected. The results meet the requirement.(4)One symposium was hold for laboratories and assessment specialists.(5)One testing technical training and conference was hold for laboratories.(6)The difference of testing methods and the correlation of test results between the the 5th Gasoline Vehicle Emission Regulation, NEDC and FTP-75 were completed. (7)The draft for specifying the tolerance range of ambient concentrations in a testing laboratory was completed.